Work on Bonneville project gets under way. - Scene of activity at the Bonneville dam and hydroelectric development project in the Columbia river, Oregon, where 1300 men are engaged in preliminary work harnessing the river. When completed the dam...

Bonneville project has own police force. - A new organization to enforce the laws was formed at Bonneville dam site on the Columbia river by the government and plan may be to extend to other federal projects

Where highest gates will rise. - Huge steel frames are being set in position for the sealocks at the dam here. These will support the highest sealock gates in the world, concrete and steel slabs 102 feet high. In the background is the round...

Concrete feet for big spillway dam. - Foundation blocks for the south half of the main spillway dam resembles fenced-in gardens. These blocks, which rest on bedrock, vary from 40 to 60 feet below sea level, due to bedrock sloping to the south....

Inside Bonneville locks. - We are looking downstream inside the sealocks where ocean steamers will float through the Cascade range when the great Bonneville project is finished. Ships will tie up at the smooth concrete wall at left while waiting to...

Ocean-going vessels will pass through here. - This view shows how construction is progressing on the $3,000,000 navigation locks at the $34,000,000 Bonneville dam on the Columbia river near Portland, Ore. Sea-going freighters will pass through here...

Men must scatter their labors over field of many patterns. - Basic and developed construction . - Left--Face of Boulder dam on Colorado river. Upper right--Work on Bonneville dam on Columbia river. Lower left--The labor of men begins with the soil.

Bonneville power project rises like magic. - About 60,000 horse power will be generated by the power equipment of the Bonneville power and navigation project. The substructure of the plant to house the huge turbines is shown here in the process of...

Massive works greet dam visitor. - Top--Heavy steel and concrete intake of the Bonneville dam power house. The high water mark of the Columbia is shown by the dark line three feet above the present water level on the piers. Below--Over this road,...

Federal city rises at Bonneville dam. - Bonneville dam's 20 permanent $12,000 houses are taking on the appearance of a small, well-planned city. Grass now grows on the lawns where a few weeks ago was nothing but dust. Army engineers are preparing...

Big Bonneville dam ready for superstructure builders. - Top picture shows downstream face of the Bonneville dam power house, which has been completed to the 90-foot deck. Bids for the superstructure, to house the generators, are to be called in...

Down to bed-rock. - A jack-hammer crew is shown at work inside the cofferdam on the old bed of the Columbia river, drilling for dynamite charges. The blasting operations to follow will clear the way for the foundations of the main spillway of the...

Concrete feet for big spillway dam. - Foundation blocks for the south half of the main spillway dam resembles fenced-in gardens. These blocks, which rest on bedrock, vary from 40 to 60 feet below sea level, due to bedrock sloping to the south....